void readHeader(byte[] data, Cursor cursor){
int len = Utils.ReadLength (data, cursor);
int newIndex = cursor.index + len;
version = Utils.ReadInt32(data, cursor);
int supportedVersion = Utils.ReadInt32 (data, cursor);
NSUtils.Assert (LIB_VERSION >= supportedVersion, "BBGamelib:flash: library {0} is not supported by swf parser {1} ",
versionToString(LIB_VERSION), versionToString(supportedVersion));
flashVersion = Utils.ReadByte (data, cursor);
frameRate = Utils.ReadByte (data, cursor);
frameSize = Utils.ReadVector2 (data, cursor);
prefix = Utils.ReadString (data, cursor);
cursor.index = newIndex;
}
void readDefines(byte[] data, Cursor cursor){
